It’s Batiuk’s party and he can pull long-absent characters out of his ass if he wants to. Mickey is Linda’s daughter from a previous whatever. I can’t get my hands on those Act I strips but as a teen, Mickey was seen hanging out at Montoni’s. Bull’s “how’s your kicking leg” query is only half in jest: if he can get away with putting the team mascot in the game, what’s to stop him from recruiting an adult female?